package operatori;

public class Plus extends Operator{
	public double calcul(double aux1, double aux2)
	{
		return aux1 + aux2;
	}
	
	public static double Calcul(double aux1, double aux2)
	{
		return aux1 + aux2;
	}
	public double calculDerivata()
	{
		if(getfStang()==null || getfDrept()==null)
			System.exit(1);
		
		return calcul(getfStang().calculDerivata(),getfDrept().calculDerivata());
	}
	public String derivare()
	{
		if(getfStang()==null || getfDrept()==null)
			System.exit(1);
		return concatTermeni(getfStang().derivare(),getfDrept().derivare());
	}
	
	public String concatTermeni(String aux1, String aux2)
	{
		String aux;
		if(aux1.compareTo("0")==0 && aux2.compareTo("0")==0)
			aux=aux1;
		else if(aux1.compareTo("0")==0) aux=aux2;
		else if(aux2.compareTo("0")==0) aux=aux1;
		else aux=aux1+"+"+aux2;
		return aux;
	}
	
	public static String concatTermens(String aux1, String aux2)
	{
		String aux;
		if(aux1.compareTo("0")==0 && aux2.compareTo("0")==0)
			aux=aux1;
		else if(aux1.compareTo("0")==0) aux=aux2;
		else if(aux2.compareTo("0")==0) aux=aux1;
		else aux=aux1+"+"+aux2;
		return aux;
		
	}
}
